Track-laying wheel



0. G. MALSBARY. TRACK-LAYING WHEEL. APPLICATION FILED MAY 20, 1918.

2 SHEETS-SHEET l- A TTOR/l /EY 0. G. MALSBARY.

TRACK LAYING WHEEL. APPLICATION FILED MAY 20, i 9|8.

2 SHEETSSHEET 2- ATTORNEY Application filed May 20, 1918.

To all 107mm if may com, a:

Be it known that i, \1 .s (l. iiliinsmni', i citizen of the United b. ('95, and a resident the town of Father. haunt oif .i resno, and Slate oi (Ialiiorniz, have invented a new and useful improvement in Trackliaying Wheels, of which the following is a speeifi int-ion.

lily ii'ivention relates to wh el riins construeteil to carry the track upon which the wheel travels and among the objects aeconiplishecl are simplicity of construction, ai'oiiling the use of pivots or hinges, the automatic alineinent of the track whether the wheel is moving forward or backward and so that there is a eoi'itinuous trackwvith overlapping joints.

In the drawing" accompanying this specification Figure l is a side View of "the rim of the whee and the trash. l? 2 is a view of the periphery of the wheel showing the tracl carried by it. Fig. 3 is a View of the pcripher" of the liIil with the track re nioveil. Fi is a side view oi one of the units. or of the t ac. Fig. 5 is a. top View of. i. Fig. 6 is a siile \lGW of a nioiliiieil form of the vheel showing swings ir'angecl to more r ailily hold the l shoes in position. Fig. 7 is a (lenil view oi the spring. Fig. 8 is a top view oi a niile for alinin the units oi the track. Fig. ll is a siile view of Fi 8.

in the said drawing ll is an ordinary hicle wheel. ii and ll are duplicate an. iliar rin'is which are arranged in pairs, one. on each siilc of wheel ii to which they are rigidly attached. Any well known means may he used to attach the auxiliary rims to the wheel. Each oi the rims ll anrl B have ilou'ole outwaril flanges '1' so .ihi peripherv s in llie form of a channel. These ll ges shonlil be slightly beveled so the. space he.- l ceu the flanges on each F5111) is 'htii' :os r together at the base of (he lllUlQfL than e outside thereof.

riins have a plurality of oblong holes 3/ ll, ongg'li the rim a spaced listance aipi t.

shown on the drawing, an a spaced (lisiiance from each ol such (ilill ng in h: e with the center of the pe' ho ea 5% an in at hol s, anal pherv are Serial E0. '2

on rim l3. .lhe purpose oi this nonstruclion is hereinafter sot forth.

l) a unit oi the track. The ninnhor oi said. units is equal to the. number ol. olnong holes 5/ in. 'riins ll and 3.

Unit 1) consists of a block (5 which is prei'erahly of wood, ruhhcr, or similar nialerial whi h will ahsorh shocks more reallily than iron, a hase IF, anil a wearing shoe 6. The base (F and shoe are preferably oi" metal. The shoe J is intended to tlilil} the wear ociasioueil ii) the contact of the. ti'ch' wilh the ground, llllll the cnils d shoulil he bent slightly upward lo protect the. block (3. 'lhc width of the unit such that it lOildQl, his in the chaincl liclwcen the flanges hut the width of rho shoe slioui-il he wiilcr than the lilocl; ll. (l is an upright projection at the approximate center of base which his loosely in. the oblong: hole y. This projection is lapcrcil Lowari v the top anil is ol such length ainl play with in the hole g; that either end oi the unit D can he nil'n'eil to touch the periphery ol' the rim l3 or B. E anil F are guide pins lapereil towaril the top, which lit loosely within the guide holes c llilll f, for the purpose. of alining the units of the trzclc, "when whee 1i rotates. in the ilireclion the wheel is traveling. The spaccillllSllllll'U hetwccn adjacent holes 5 is such that when the wheel is asseinhleil the :uljaccnt LllllH oi the units ll on either of the rims l3 and il will meet so that when the wheel rotating and the track drops in place on the gronnil it will form a continuous track. and the holes in the. rims P {Hill ll having the rij-laiion hereinhefore .c ""riheil the units on riin B will overlap the Ill ing points of the units on rini is a slop plate altar-hell 1o thil cl such size that top of projeciion ii an i i it locks the projection willm lhc opening w such relation t in! it will culcr the opening on each si-zle o and ,Qlilill the unit.

()1 in l lo. (l I have shown a torin oi wheel hereloi'ore described in which i i e l t more readily ailjusi' n an lo keep them l 1 rin l l'hen should he 2.

units composing each pair being on opposite sides of the rim. N is an eye on the top of projection Gr to which one end of spring K is attached. L is a ring which loosely encircles the hub P of the wheel, 0 is an eyebolt attached to one end of spring K and running through the periphery of ring L. The tension of spring K can be adjusted by means of nuts 0 and o as shown in Fig. 7. If desired one end of the spring can be at tached to the hub and the other end to the center of the unit.

1. In a track laying Wheel, the combination of duplicate rims attached to a common hub, each of said rims having an outwardly projecting flange on each side, a plurality of uniform sized units of track each of said units being of such Width that it will fit loosely between the flanges on either rim, a projection at the approximate jections, the units on each Lilli being arranged and spaced so that when lying on the ground the ends of contiguous units on each rim will meet, and the units on the duplicate rim will overlap the meeting place of the units on the other rim, substantially as described. v

2. Ina track laying Wheel the combination of duplicate rims attached-to a Wheel, each of said rims having holes therethrough a spaced distance apart, units of track having upright tapering posts therein spaced to fit loosely Within the holes, one of said posts being at the approximate center of said unit the center post and the hole into which it nts being in such relation that the unit can be rocked so that either end thereof can touch the periphery of the Wheel and means for holding said units in line consisting of an annular groove in the periphery of the rim of such Width that the units will fit loosely therein, and guides attached to the inside circumference of the rim ad-' H. A. .HUEBNEB, CLno K. Comm, 

